Answer:
2.42
Step-by-step explanation:
standard deviation= sqrt(variance)
Variance=E[X2] - E[X]2
E[X] = sum(X)/n=35/9, so E[X]2 = 1225/81
E[X2] =sum(X2)/n = 189/9 = 170/81
Variance= 476/81
Standard deviation = sqrt(476/81) ~2.42
Answer:
11-2x=x+2
-3x=9
x=-3
Step-by-step explanation:
y=11-2x
y=x+2
So we use the first equation to plug in for the second equation.
Then we solve for x and get the answer. Hope this helps. Thank you.
Answer:
tate is hosting a party and he has 23 people coming over. for every table he buys, 8 chairs come with it. how many tables should tate buy so that he can seat all of his guests?
Step-by-step explanation:
Answer:
area formula: base x height 9x4=36
Step-by-step explanation: